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[Bug-gnubg] Error rate of predefined settings

From: Philippe Michel
Subject: [Bug-gnubg] Error rate of predefined settings
Date: Mon, 29 Sep 2014 23:31:08 +0200 (CEST)
User-agent: Alpine 2.11 (BSF 23 2013-08-11)

A few months ago, Timothy Chow asked about the weaker predefined
settings :

approximately what Snowie error rate do these settings translate into? Has anyone tested this out?

Sessions of about 500 games (money play without beavers) analyzed at 2 ply give :

expert           1.7
advanced 7 intermediate 24
casual          31
beginner        38

2 ply is not perfect, so the expert error rate is more likely to be about 3 and the other may be slightly higher as well.

All in all, it looks like expert is in fact world class and advanced more or less what one would expect.

For the weakest levels, the mere definition of how an intermediate, casual or beginner is supposed to play is not obvious, but the way the error rates are spread out feels somewhow inadequate.

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